---
id: CVE-2025-12669
title: >-
  GitLab has remediated an issue in GitLab CE/EE affecting all versions from
  15.11 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could
  have allowed an authenticated user to inject HTML and JavaScript into email
  notific…
summary: >-
  GitLab has remediated an issue in GitLab CE/EE affecting all versions from
  15.11 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could
  have allowed an authenticated user to inject HTML and JavaScript into email
  notific…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-94
vendor: gitlab
product: gitlab
affected:
  - 'gitlab >= 15.11.0, < 18.9.7'
  - 'gitlab >= 18.10.0, < 18.10.6'
  - 'gitlab >= 18.11.0, < 18.11.3'
patched:
  - gitlab 18.11.3
published: '2026-05-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12669'
references:
  - url: >-
      https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
    label: cve@gitlab.com
  - url: 'https://gitlab.com/gitlab-org/gitlab/-/work_items/579385'
    label: cve@gitlab.com
  - url: 'https://hackerone.com/reports/3368096'
    label: cve@gitlab.com
tags:
  - nvd
epss: 0.00176
epssPercentile: 0.06637
ingestedAt: '2026-10-14T13:30:58.498Z'
---

## Overview

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to inject HTML and JavaScript into email notifications sent to other users due to improper input sanitization.

## Affected

- `gitlab >= 15.11.0, < 18.9.7`
- `gitlab >= 18.10.0, < 18.10.6`
- `gitlab >= 18.11.0, < 18.11.3`

## Remediation

Upgrade past the affected range:

- `gitlab 18.11.3`